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A method and device for sending and receiving continuous data packets

A technology of data packets and sending to, applied in the field of communication, can solve the problems of multi-channel resources, the length of the flow ID is not defined, the flow ID is unavailable, etc., to improve the utilization efficiency, improve the flexibility, and save unnecessary overhead.

Active Publication Date: 2017-04-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the problems of this prior art mainly include: firstly, the information identified by the flow identification negotiated between the stations is all fixed, if information changes in continuous packets, for example, the QoS control field of the packet and the flow identification When the QoS control fields of the identification are different, the flow identification is not available when the current packet is transmitted, and it is necessary to renegotiate the flow identification or send the complete data packet format, and the application of the flow identification lacks flexibility; the second is to end the application of the flow identification. The TAIL / ACK frame will occupy more channel resources; the third is that the length of the flow identifier is to be defined, and there is still room for compressing the MAC frame header field

Method used

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  • A method and device for sending and receiving continuous data packets
  • A method and device for sending and receiving continuous data packets
  • A method and device for sending and receiving continuous data packets

Examples

Experimental program
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Embodiment 1

[0040] This embodiment relates to a method for transmitting continuous packets. By setting the flow compression bit and the flow field in the data packet to indicate whether the packet is transmitted in the compressed format of the flow identifier, and to indicate whether the multiple MAC frame header fields of the packet are the same as the information of the MAC header field identified by the flow identifier, the design is designed A scheme for improving the application flexibility of flow identification.

[0041] Figure 5 It is a flow chart of data packet transmission between stations according to Embodiment 1 of the present invention.

[0042] Such as Figure 5 As shown, in step S500, the sending station STA1 sends a compression request message to the receiving station STA2, and the compression request message may be but not limited to a frame header control request frame (HC-REQ frame), which carries labels belonging to continuous data packets - The flow identifier Fl...

Embodiment 2

[0078]This embodiment relates to a method for transmitting continuous packets. By setting the flow compression bit and the flow field in the data packet, it indicates whether the packet is transmitted in the compressed format of the flow identifier, indicates whether the multiple MAC frame header fields of the packet are the same as the field information identified by the flow identifier, and indicates that the packet is successfully transmitted Whether to continue to use the flow identification after the end, a scheme to improve the flexibility of the application of the flow identification is designed. The difference from the first embodiment is that the second embodiment uses the stream end bit in the stream field to replace the stream end frame.

[0079] Figure 8 It is a flow chart of data packet transmission between stations according to Embodiment 2 of the present invention.

[0080] Such as Figure 8 As shown, in step S800, the sending station STA1 sends a compressio...

Embodiment 3

[0127] This embodiment protects another method for transmitting continuous data packets. The sending station and the receiving station determine the transmission format of the next data packet by negotiating the indicator bit, and provide a more effective solution for compressing the MAC frame header.

[0128] Figure 11 is a schematic flow chart of sending continuous data packets according to Embodiment 3 of the present invention.

[0129] Such as Figure 11 As shown, the process starts from step S1100.

[0130] In step S1101, the sending station STA1 prepares to send a data packet.

[0131] In step S1102, the sending station STA1 judges whether the data packet is the first data packet in the continuous data packets sent to the receiving station STA2, if yes, go to step S1104, otherwise go to step S1103.

[0132] In step S1103, the sending station parses the previous response message of the data packet sent to the receiving station STA2, and obtains the compression negoti...

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Abstract

Provided are a continuous transmission data packet sending and receiving method and device. The continuous data packet sending method comprises the following steps: a first station sending a compression request to a second station, the compression request carrying flow identification and field information about a media access control (MAC) header of a following data packet; receiving a compression response sent by the second station; and sending a first data packet comprising a complete MAC header or comprising a compressed MAC header with a flow field to the second station, the flow field comprising flow identification. The embodiments of the present invention can effectively compress the field length of the MAC header of a continuous data packet, save the unnecessary overheads of the continuous data packet, increase the utilization efficiency of channel media resources, and also help a sending station to save energy. In addition, an MAC header field which generates a change can be processed flexibly, thereby increasing the utilization flexibility.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for continuously transmitting data packets. [0002] technical background [0003] The IEEE 802.11 technology formulates a general medium access control layer (Medium access control, MAC) for multiple physical layers (Physical layer, PHY) to regulate the construction of the wireless local area network. Among them, the main task of the media access control layer is to establish addressing and channel access control mechanisms for multiple sites in the same network, making communication between multiple sites possible. [0004] The communication between sites takes the data packet structure as the basic unit, and the data packet structure is as follows: figure 1 As shown, the short training field (Short traning field, referred to as STF) and the long training field (Long traningfield, referred to as LTF) are the preamble of the data packet, and the former is used for p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L1/00H04L29/06
CPCH04L1/0079H04L69/04H04W28/06Y02D30/70
Inventor 杨国瑞张兴新
Owner HUAWEI TECH CO LTD
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